Red
Pitaya Notes
Peter Halverson Last update
3/13/2020
http://halverscience.net/index.html
These
are Halverson's personal notes. They are unedited and there
is no guarantee of accuracy. Use at your own risk. I
am making them available to you because they might actually
be helpful. If they are helpful, I would really
appreciate a "thank you".
Link to
latest notes on Google Docs:
https://docs.google.com/document/d/1bq_LUhX-vD6SZdjKCj1DOzSGIcb0muBbKI6DbPMAFnE/edit?usp=sharing
SPECIFICATIONS
(Assuming I have a Red Pitaya STEMLAB
125-10)
CPU =
DUAL CORE ARM CORTEX A9
FPGA=
Xilinx Zynq 7010 SOC
RAM=
256MB (2Gb)
Disk=
Micro SD up to 32GB
If the
Red Pitaya has a static address, then connecting to it will
look like this:
To
SSH to my device: ssh root@192.168.1.101
pw=root
To
open web page on device:
http://192.168.1.101/
If the
Red Pitaya has DHCP is running, then connecting to it will
look like this:
To
SSH to my device: ssh
root@rp-f000bd.local
To
open web page on device:
http://rp-f000bd.local/
Software
in my device is currently version 0.90-149 (at least
that's the version of the applications)
The
version of Linux reported by uname -a is Linux redpitaya
3.9.0-xilinx #1 SMP PREEMPT Tue Feb 25 15:47:35 CET 2014
armv7l GNU/Linux
FPGA
programming uses Xilinx Vivado 2017.2 (including
SDK)
Red
Pitaya uses Verilog and System Verilog
In the
Developers guide, section 3.2.3.1.1 the following statement
is made:
Red
Pitaya is developed on Linux (64bit Ubuntu 16.04), so Linux
is also the only platform we support.
Link:
https://redpitaya.readthedocs.io/en/latest/developerGuide/ecosystem/ecosystem.html
===============
HDL Notes (HDL = Hardware Definition Language)
===============
Introduction
to Verilog
https://www.bing.com/videos/search?q=verilog+hdl+tutorial&view=detail&mid=C9D79939B017E0414722C9D79939B017E0414722&FORM=VIRE
.SV
files contain System Verilog code.
.XDC
files contain constraints in Xilinx Design Constraints
format, used in Xilinx FPGA and SOC designs. XDC is
an offshoot from Synopsys Design Constraint (SDC) format,
with Xilinx customized syntax.
The main
difference between Verilog and VHDL is that Verilog is
based on C language while VHDL is based on Ada and Pascal
languages. Both Verilog and VHDL are Hardware Description
Languages (HDL). ... VHDL is an older language whereas
Verilog is the latest language.
Intro to
TCL:
http://zetcode.com/lang/tcl/
==========================
Modelsim ============================
*****
Learning environment for VHDL and Verilog:
(Free for students) ******
https://www.mentor.com/company/higher_ed/modelsim-student-edition
After
putting in my info Mentor sends me an email with a unique
download link.
In this
case is was https:// go.mentor.com/594Q5 Each
time
(Each
time I ask, the link has a different
number.)
Download
size 347 Mb. Its name is
modelsim-pe_student_edition.exe and it is a self-extracting
zip file.
ModelSim
PE Student Edition 10.4a Installed OK on Windows 7 virtual
machine with 1 Gb ram. The only issue was that the
extraction failed due to "insufficient disk space" which
was clearly wrong. There was plenty of disk space. I
downloaded a free program called
7ZIP
http://sevenzip.sourceforge.net/
and it
extracted the installer OK.
On the
Dell system, it extracted OK. No need for
7zip.
Installation
script runs and at the end it open Firefox (or whatever is
default browser) and sends me to
http://portal.mentor.com/d/license_request.asp
where it
again asks me for my info.
After
~one hour, email arrives with student_license.dat (which is
valid for only 180 days). It needs to be put into the
Midelsim directory, i.e. in
C:\Modeltech_pe_edu_10.4a
9/30/2019
It works but complains about the license being
invalid. After messing around I delete (actually
rename) this installation of Modelsim-PE and also the
Modelsim-XE (from the Xilinx CD; it didn't work). I
go through the process of getting a new download of
Modelsim-PE and a new license files and.... it works!!!
Yay! Time to go to bed.
Important:
It seems the Mentor is tracking where the Modelsim download
requests and the License requests are coming from. So
it seems I better do both from the device that will
actually run Modelsim.
Comments
from the license email:
A
product tutorial, is available for download from the Mentor
Graphics website at http://go.mentor.com/33rqm
You can
also access the ModelSim PE Student Edition Google Group
at
https://groups.google.com/forum/#!forum/modelsim-pe-student-edition
================
FPGA Learning Boards ============
Big list
and advice:
https://joelw.id.au/FPGA/CheapFPGADevelopmentBoards
Vary
basic board: Digilent 410-328
https://www.jameco.com/z/410-328-Digilent-Cmod-A7-15T-Artix-7-FPGA-Module-Breadboard-Compatible_2283871.html
https://store.digilentinc.com/cmod-a7-breadboardable-artix-7-fpga-module/
Much
faster, capable board: 471-014 (Features same FPGA as
Red Pitaya, Zynq-7000)
https://www.digikey.com/product-detail/en/digilent-inc/471-014/1286-1175-ND/7652758
Also:
410-351-10
https://store.digilentinc.com/zybo-z7-zynq-7000-arm-fpga-soc-development-board/
Recommended
by Digilent: 410-183
https://store.digilentinc.com/basys-3-artix-7-fpga-trainer-board-recommended-for-introductory-users/
Getting
started tutorial:
https://reference.digilentinc.com/learn/programmable-logic/tutorials/getting-started-with-fpga/start
================
Boards I inherited from JPL
===================
Xilinx
CPLD Design Kit
Has two
CPLDs (Complex Programmable Logic
Device).
1)
Xilinx XC2C256-7TQG144C
CoolRunner-II
https://www.digikey.com/product-detail/en/xilinx-inc/XC2C256-7TQG144C/122-1401-ND/949452
6000
gates ("High performance, low power") 3.3 V power for
I/O and 1.8 V for internal logic (?)
2)
Xilinx XC9572XL-10VQ44C
https://www.digikey.com/product-detail/en/xilinx-inc/XC9572XL-10VQ44C/122-1265-ND/406981?utm_adgroup=DSA%20-%20Product%20Detail%20Pages&utm_source=bing&utm_term=/product-detail/&utm_campaign=&utm_medium=cpc&utm_content=WeFazTKt_gcrid_81295162219849_gkw_/product-detail/_gmt_bb_gdv_c_slgid__ggrid_1300722292834901_gtaid_dat-2333094954664822:loc-190_&msclkid=3b5d2fe4036a1166a17c726a70b7748c
1600
gates. 3.3 V power
To
program these, I want to use the old Window 7 PC and the
old ISE 7.1i-Webpack software that comes with the
board. However the software is asking for a license
number. To get the license number, I found this page for
"legacy " licenses.
https://www.xilinx.com/member/forms/registration/10x_and_prior_regids.html
After
putting in my personal info, I am granted access to this
page;
https://www.xilinx.com/member/10x_and_prior_regids.html
It
doesn't have the webpack licenses
(Damn!)
Try
again , this time starting here:
https://www.xilinx.com/support/licensing_solution_center.html
It takes
me here, where node-locked licenses are
"generated"
https://xilinx.entitlenow.com/AcrossUser/main.gsp?product=&tab=&req_hash=&
================
Tutorials by "nandland"
=====================
NANDLAND
tutorials are GREAT!!!!! Highly recommended. The
GoBoard is EASY to learn.
https://www.nandland.com/
Get
Modelsim here:
https://www.mentor.com/company/higher_ed/modelsim-student-edition
